The Amaryllididae of Australia (Crustacea: Amphipoda: Lysianassoidea) Lowry, J. K. Stoddart, H. E. Records of the Australian Museum 2002 54 129 214 KJ9K Lowry & Stoddart, 2002 Lowry & Stoddart 2002 [277,528,775,799] Malacostraca Amaryllididae Bamarooka Animalia Amphipoda 63 192 Arthropoda species tropicalis sp. nov.   Figs. 58–60   Type material.  HOLOTYPE, female, 6.0 mm, ovigerous ( 5 eggs), AMP37074; 1 PARATYPE, male, 3.9 mm,  AMP37075; 5   PARATYPES, AMP37076; northwest of Port Hedland, North West Shelf, Western Australia, eastern Indian Ocean, 19°29.2'S 118°52.5'Eto 19°29.5'S 118°52.3'E,  40–41 m, epibenthic sled,  28 June 1983, FRV  Soela, CSIROstn  NWS 03.B8.S. 5  PARATYPES, AMP37077, same locality, 19°29.6'S 118°52.2'Eto 19°29.4'S 118°52.8'E,  38 m, epibenthic sled,  30 August 1983, CSIROstn  NWS 04.B8.S. 6  PARATYPES, AMP37078, same locality, 19°29.4'S 118°52.5'Eto 19°30.0'S 118°51.6'E,  38 m, epibenthic sled,  25 October 1983, FRV Soela, CSIRO NWSstn 05.D8.S. 10  PARATYPES, NMV J7667, North West Shelf, Western Australia, eastern Indian Ocean, 19°39'S 116°22'Eto 19°39'S 116°43'E,  46 m, bryozoans, G.C.B. Poore& H.M. Lew Ton,  7 June 1983, FRV  Soela, stn NWA-33.   Additional material. WESTERN AUSTRALIA: 19 specimens, AMP37079 to P37087, from 9 CSIRO North West Shelfstations close to typelocality,  36–40 m, dredged,  June–October 1983. N ORTHERN TERRITORY:  1 specimen, AMP58075, S side of New Year Island, Arafura Sea, 10°54'S 133°02'E,  14 m, hydroids, G.C.B. Poore,  14 October 1982, stn NT-20.  2 specimens, AMP58076, same locality,  14 m, alga  Padina, J.K. Lowry,  14 October 1982, stn NT-25.  1 specimen, AMP58077, same locality,  14 m, rubble, J.K. Lowry,  14 October 1982, stn NT-26.  1 specimen, AMP37088, patch reefs at NW end of McCluer Island, 11°02'S 132°58'E,  8 m, red algae and sediment, J.K. Lowry,  16 October 1982, stn NT-38.  2 specimens, AMP58078, S end of McCluer Island, Arafura Sea, 11°06'S 133°00'E,  8 m, coral rubble, G.C.B. Poore,  17 October 1982, stn NT-55.  1 specimen, AMP58079, same locality,  8 m, red algae?  Champsia, J.K. Lowry,  17 October 1982, stn NT-58.  14 specimens, AMP37089, same locality,  8 m,  Acroporabase, P. Horner,  17 October 1982, stn NT-59.  3 specimens, AMP58080, same locality,  8 m, coral rubble with encrusting invertebrates, J.K. Lowry,  17 October 1982, stn NT-60.  2 specimens, AMP37090, same locality,  8 m,  Seriatopora hystrix, J.K. Lowry,  17 October 1982, stn NT-61.  6 specimens, AMP37091, W of East Point, north end of Fannie Bay, Darwin, 11°24.5'S 130°48.5'E,  8–10 m, encrusting ascidian  Didemnum psammodes, J.K. Lowry,  26 October 1982, stn NT-97.  3 specimens, AMP58081, same locality,  8–10 m, red alga, J.K. Lowry,  26 October 1982, stn NT-103.  1 specimen, AMP18172, Port Darwin, [approx. 12°27'S 130°50'E], W.E.J. Paradiceon HMAS  Geranium.  QUEENSLAND: 1 specimen, AMP37092, fringing reef between Bird Isletand South Island, Lizard Island, 14°40'S 145°28'E,  24.4–27.4 m,  Halophila,mixed algae and coral rubble, J.K. Lowry,  7 October 1978, stn QLD-21.  4 specimens, AMP37093, same locality,  27.6 m,  Halophila, mixed algae and sediment from seagrass beds on reef base, J.K. Lowry& P.C.Terrill,  9 October 1978, stn QLD-27&28.  1 specimen, AMP37094, Lizard Island,  3 m, plankton tow in lagoon, J.M. Leis,  17 October 1979, stn JML 17.10.2.  1 specimen, AMP37095, between Lizard Islandand Carter Reef,  32–38 m, algae and sediment, epibenthic sled, J.M. Leis,  26 November 1981, stn JML 81/26-1-4.    Typelocality. Northwest of Port Hedland, North West Shelf, Western Australia, eastern Indian Ocean, 19°29'S 118°52'E,  40–41 mdepth.   Description. Based on holotypefemale, 6.0 mm, AM P37074. Head much deeper than long, anterior margin with notch extended into a slit; rostrum absent; eye elongate, reniform. Antenna 1 peduncular article 1not ball-shaped proximally, distal margin with small medial spine; peduncular article 2 medium length; flagellum without callynophore, calceoli absent. Antenna 2 flagellum about as long as that of antenna 1, without calceoli. Mouthpart bundle subconical. Epistome/upper lip almost straight (lateral view). Mandiblelacinia mobilis a stemmed, distallycusped blade; accessory setal row with intermediate setae; palp article 2 without posterodistal setae, article 3 without A3-seta. Maxilliped outer plate with distal margin smooth, medial margin without notch. Gnathopod 1 carpus shorter than propodus (0.8×); propodus, posterior margin without robust setae. Gnathopod 2 palmslightly acute, with no lateral robust setae, 1 medial robust seta. Pereopods 3 and 4 merus and carpus without setal fringe. Pereopod 4 coxa with anterior margin slightly obtuse, posterior margin rounded, anteroventral corner rounded. Pereopods 5–7 with distal articles elongate, dactyli short and stocky. Pereopod 5 basis expanded posteriorly, rounded with sloping posteroproximal shoulder. Pereopod 7 basis rounded posteriorly, posteroventral corner rounded, posteroventral margin curved. Epimeron 3 posterior margin smooth, with notch well above rounded posteroventral corner. Uropod 1 peduncle dorsolateral margin with 7 robust setae; outer ramus without large spines between robust setae. Uropod 2 inner ramus slightlyconstricted. Uropod 3 rami lanceolate; without plumose setae; outer ramus 1-articulate. Telson moderately cleft(about 36%).  Male(sexually dimorphic characters). Based on paratypemale, 3.9 mm, AM P37075. Antenna 1 flagellum with callynophore. Mandible palp article 2 with 1 posterodistal seta.   Etymology. The specific name is a reference to the species’ distribution in Australia.   Remarks.  Bamarooka anomalaand  B. tropicalisboth have elongate, reniform eyes. They are easily distinguished from each other by their fifth pereopods, which have a linear basis in  B. anomalaand an expanded basis in  B. tropicalis.  Habitat.  Bamarooka tropicalishas been found with algae, seagrasses, sediments, ascidians, bryozoa and hydroids, but most commonly among corals and coral rubble.   Distribution. Northern Australia, from North West Shelf off Western Australiato northern Great Barrier Reef, Queensland; 3–40 mdepth.   Figure 58.  Bamarooka tropicalis n.sp., holotype female, 6.0 mm, AM P37074; paratype male, 3.9 mm, AM P37075; North West Shelf, Western Australia. Scales for A1, 2, MX2, MPOP represent 0.1 mm; remainder represent 0.05 mm.   Figure 59.  Bamarooka tropicalis n.sp., holotype female, 6.0 mm, AM P37074, North West Shelf, Western Australia. Scales represent 0.2 mm. Lowry & Stoddart: Australian Amaryllididae (Amphipoda)195   Figure 60.  Bamarooka tropicalis n.sp., holotype female, 6.0 mm, AM P37074, North West Shelf, Western Australia. Scales represent 0.1 mm.    ErikusLowry & Stoddart   ErikusLowry & Stoddart, 1987: 1303.   Diagnosis. Mouthpart bundle subconical. Mandible palp article 3 with proximal A3-seta. Pereopod 4 coxa with anterior and posterior margins subparallel. Pereopods 5–7 with distal articles elongate. Uropod 3 rami lanceolate; with plumose setae in male and female; outer ramus 2-articulate.    Typespecies.  Erikus dahliLowry & Stoddart, 1987, by original designation.  Species composition.  Erikuscontains one species:  E. dahliLowry & Stoddart, 1987.   Remarks. When Lowry & Stoddart (1987) described  Erikus dahlithey recorded the uropod 3 outer ramus as 1-articulate. Closer examination has shown that a small, spine-like second article is present. None of the Australian species of  Amaryllishave a 2-articulate outer ramus on uropod 3 but specimens in several non-Australian literature records of   Amaryllis macrophthalmaclearly do. Material from Patagonia (Stebbing, 1888), Argentina( Alonso, 1987), Mauritius( Ledoyer, 1978), Madagascar( Ledoyer, 1979; 1986) and the Red Sea (Lyons & Myers, 1991) all have the spine-like article 2 either illustrated or described. Stebbing (1908: South African material) and Schellenberg (1931: South American material) have recorded  Amaryllis macrophthalmawith plumose setae on male pereopods 3 and 4; Stebbing (1908: South African material), K.H. Barnard (1916: South African material), Ledoyer (1979; 1986: material from Madagascar) have recorded  Amaryllis macrophthalmawith pappose setae on uropod 3; and Ledoyer (1986: material from Madagascar) has recorded  Amaryllis macrophthalmawith A3-setae on the mandibular palp. None of these characters occur in any Australian species of  Amaryllis, but all three characters occur in  Erikus dahli. In our opinion none of these records belong in the genus  Amaryllis; they most likely belong in the genus  Erikus.   Distribution.  Erikusis a shallow-water genus currently known from southern South America, but there is evidence that it also occurs in Africa (see Fig. 61) P37074 AM 63 192 5 5 holotype P37075 [613,744,908,931] AM 63 192 1 paratype P37076 [146,425,937,960] PARATYPES, AM 63 192 1 paratype 1983-06-28 AM Soela Port Hedland 41 -19.491667 eastern Indian Ocean 127 118.871666 North West Shelf 63 192 1 Western Australia paratype NWS 63 192 NWS 03 1 Western Australia paratype P37077 1983-08-30 AM 38 -19.49 127 118.88 63 192 1 Western Australia paratype NWS 63 192 NWS 04 1 Western Australia paratype P37078 1983-10-25 AM 38 -19.5 127 118.86 63 192 1 Western Australia paratype 1983-06-07 NMV G. C. B. Poore & H. M. Lew Ton & Soela 46 -19.65 eastern Indian Ocean 1271 116.71667 North West Shelf 63 192 J7667 1 Western Australia paratype P37079, P37087 1983-06 1983-10-31 1983-06 AM, CSIRO 38 North West Shelf 63 192 19 Western Australia P58075 1982-10-14 AM G. C. B. Poore 14 -10.9 Arafura Sea 1296 133.03334 New Year Island 63 192 1 WESTERN AUSTRALIA P58076 1982-10-14 AM G. C. B. Poore 14 -10.9 Arafura Sea 1296 133.03334 New Year Island 63 192 2 WESTERN AUSTRALIA P58077 1982-10-14 AM J. K. Lowry 14 -10.9 Arafura Sea 1296 133.03334 New Year Island 63 192 1 WESTERN AUSTRALIA P37088 1982-10-16 AM J. K. Lowry 8 -11.033334 McCluer Island 1296 132.96666 63 192 1 WESTERN AUSTRALIA P58078 1982-10-17 AM G. C. B. Poore 8 -11.1 Arafura Sea 1296 133.0 McCluer Island 63 192 2 WESTERN AUSTRALIA P58079 1982-10-17 AM Champsia, J. K & Lowry 8 -11.1 Arafura Sea 1296 133.0 McCluer Island 63 192 1 WESTERN AUSTRALIA P37089 1982-10-17 AM P. Horner 8 -11.1 Arafura Sea 1296 133.0 McCluer Island 63 192 14 WESTERN AUSTRALIA P58080 1982-10-17 AM J. K. Lowry 8 -11.1 Arafura Sea 1296 133.0 McCluer Island 63 192 3 WESTERN AUSTRALIA P37090 1982-10-17 AM J. K. Lowry 8 -11.1 Arafura Sea 1296 133.0 McCluer Island 63 192 2 WESTERN AUSTRALIA P37091 1982-10-26 AM 9 -11.408334 Darwin 129 130.80833 Fannie Bay 63 192 6 WESTERN AUSTRALIA P58081 1982-10-26 AM J. K. Lowry 9 -11.408334 Darwin 129 130.80833 Fannie Bay 63 192 3 WESTERN AUSTRALIA P18172 AM W. E. J. Paradice -12.45 Port Darwin 1293 130.83333 63 192 1 WESTERN AUSTRALIA P37092 1978-10-07 AM J. K. Lowry Bird Islet 26 -14.666667 Lizard Island 1287 145.46666 South Island 63 192 1 Queensland P37093 1978-10-09 AM J. K. Lowry & P. C. Terrill Bird Islet 28 -14.666667 Lizard Island 1287 145.46666 South Island 63 192 4 QUEENSLAND P37094 1979-10-17 AM J. M. Leis 3 Lizard Island 63 192 1 QUEENSLAND P37095 1981-11-26 AM J. M. Leis 35 Carter Reef Lizard Island 63 192 1 QUEENSLAND Northwest of Port Hedland 41 -19.483334 eastern Indian Ocean 1271 118.86667 North West Shelf 63 192 1 Western Australia holotype